GENERATOR

JSON Schema Generator

Paste any JSON and instantly get a valid JSON Schema. Supports Draft-07 and 2020-12, auto-detects formats like dates, emails and URIs.

Schema draft

Schema title (optional)

JSON input

JSON Schema output

How it works

Paste your JSON

Paste any JSON object or array — a sample API response, a config file, a data record.

Choose draft & title

Select Draft-07 (most compatible) or 2020-12 (latest standard). Optionally add a schema title.

Generate & copy

Click Generate and copy the schema to use in your API, validation library or documentation.

Primitive types

string, number, integer, boolean, null

String formats

date, date-time, email, uri — auto-detected from value patterns

Nested objects

Recursive inference for any depth of nesting

Arrays

Item type inferred from the first element

Required fields

Non-null fields are marked as required

$schema URI

Correct draft URI included automatically

JSON Formatter

Format, beautify and minify JSON instantly.

JSON Validator

Check JSON syntax and get detailed error messages.

YAML ⇄ JSON Converter

Convert between YAML and JSON for config files and APIs.